Tweak handling of "struct like start" where a struct isn't supported #147004
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This improves the case where someone tries to write a `match` expr where the patterns have type ascription syntax. Makes them less verbose, by giving up on the first encounter in the block, and makes them more accurate by only treating them as a struct literal if successfuly parsed as such.
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r? @fee1-dead rustbot has assigned @fee1-dead. Use |
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Thanks. @bors r+ rollup |
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Tweak handling of "struct like start" where a struct isn't supported
This improves the case where someone tries to write a `match` expr where the patterns have type ascription syntax. Makes them less verbose, by giving up on the first encounter in the block, and makes them more accurate by only treating them as a struct literal if successfully parsed as such.
Before, encountering something like `match a { b:` would confuse the parser and think everything after `match` *must* be a struct, and if it wasn't it would generate a cascade of unnecessary diagnostics.
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Rollup of 10 pull requests Successful merges: - #146281 (Support `#[rustc_align_static]` inside `thread_local!`) - #146535 (mbe: Implement `unsafe` attribute rules) - #146585 (indexing: reword help) - #147004 (Tweak handling of "struct like start" where a struct isn't supported) - #147221 (Forbid `//@ compile-flags: -Cincremental=` in tests) - #147225 (Don't enable shared memory by default with Wasm atomics) - #147227 (implement `Box::take`) - #147231 (Extending `#[rustc_force_inline]` to be applicable to inherent methods) - #147233 (Initialize llvm submodule if not already the case to run citool) - #147236 (Update books) r? `@ghost` `@rustbot` modify labels: rollup
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Tweak handling of "struct like start" where a struct isn't supported
This improves the case where someone tries to write a `match` expr where the patterns have type ascription syntax. Makes them less verbose, by giving up on the first encounter in the block, and makes them more accurate by only treating them as a struct literal if successfully parsed as such.
Before, encountering something like `match a { b:` would confuse the parser and think everything after `match` *must* be a struct, and if it wasn't it would generate a cascade of unnecessary diagnostics.
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Tweak handling of "struct like start" where a struct isn't supported
This improves the case where someone tries to write a `match` expr where the patterns have type ascription syntax. Makes them less verbose, by giving up on the first encounter in the block, and makes them more accurate by only treating them as a struct literal if successfully parsed as such.
Before, encountering something like `match a { b:` would confuse the parser and think everything after `match` *must* be a struct, and if it wasn't it would generate a cascade of unnecessary diagnostics.
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Rollup of 9 pull requests Successful merges: - #146281 (Support `#[rustc_align_static]` inside `thread_local!`) - #146535 (mbe: Implement `unsafe` attribute rules) - #146585 (indexing: reword help) - #147004 (Tweak handling of "struct like start" where a struct isn't supported) - #147221 (Forbid `//@ compile-flags: -Cincremental=` in tests) - #147225 (Don't enable shared memory by default with Wasm atomics) - #147227 (implement `Box::take`) - #147233 (Initialize llvm submodule if not already the case to run citool) - #147236 (Update books) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of #147004 - estebank:ascription-in-pat, r=fee1-dead Tweak handling of "struct like start" where a struct isn't supported This improves the case where someone tries to write a `match` expr where the patterns have type ascription syntax. Makes them less verbose, by giving up on the first encounter in the block, and makes them more accurate by only treating them as a struct literal if successfully parsed as such. Before, encountering something like `match a { b:` would confuse the parser and think everything after `match` *must* be a struct, and if it wasn't it would generate a cascade of unnecessary diagnostics.
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Rollup of 9 pull requests Successful merges: - rust-lang/rust#146281 (Support `#[rustc_align_static]` inside `thread_local!`) - rust-lang/rust#146535 (mbe: Implement `unsafe` attribute rules) - rust-lang/rust#146585 (indexing: reword help) - rust-lang/rust#147004 (Tweak handling of "struct like start" where a struct isn't supported) - rust-lang/rust#147221 (Forbid `//@ compile-flags: -Cincremental=` in tests) - rust-lang/rust#147225 (Don't enable shared memory by default with Wasm atomics) - rust-lang/rust#147227 (implement `Box::take`) - rust-lang/rust#147233 (Initialize llvm submodule if not already the case to run citool) - rust-lang/rust#147236 (Update books) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup of 9 pull requests Successful merges: - rust-lang/rust#146281 (Support `#[rustc_align_static]` inside `thread_local!`) - rust-lang/rust#146535 (mbe: Implement `unsafe` attribute rules) - rust-lang/rust#146585 (indexing: reword help) - rust-lang/rust#147004 (Tweak handling of "struct like start" where a struct isn't supported) - rust-lang/rust#147221 (Forbid `//@ compile-flags: -Cincremental=` in tests) - rust-lang/rust#147225 (Don't enable shared memory by default with Wasm atomics) - rust-lang/rust#147227 (implement `Box::take`) - rust-lang/rust#147233 (Initialize llvm submodule if not already the case to run citool) - rust-lang/rust#147236 (Update books) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup of 9 pull requests Successful merges: - rust-lang/rust#146281 (Support `#[rustc_align_static]` inside `thread_local!`) - rust-lang/rust#146535 (mbe: Implement `unsafe` attribute rules) - rust-lang/rust#146585 (indexing: reword help) - rust-lang/rust#147004 (Tweak handling of "struct like start" where a struct isn't supported) - rust-lang/rust#147221 (Forbid `//@ compile-flags: -Cincremental=` in tests) - rust-lang/rust#147225 (Don't enable shared memory by default with Wasm atomics) - rust-lang/rust#147227 (implement `Box::take`) - rust-lang/rust#147233 (Initialize llvm submodule if not already the case to run citool) - rust-lang/rust#147236 (Update books) r? `@ghost` `@rustbot` modify labels: rollup
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This improves the case where someone tries to write a
matchexpr where the patterns have type ascription syntax. Makes them less verbose, by giving up on the first encounter in the block, and makes them more accurate by only treating them as a struct literal if successfully parsed as such.Before, encountering something like
match a { b:would confuse the parser and think everything aftermatchmust be a struct, and if it wasn't it would generate a cascade of unnecessary diagnostics.